bshankey

I am going to buy a F 150 in the morning and am looking at two models.
I am not sure if there is a big gas difference between the two. One has a 3.31 gear ratio and the other has the 3.73.

I pull a camper that weighs approx. 6500 about 10 times a year for weekend getaways, but mostly the vehicle will be used for travel and work purposes.

Can someone give me any advice on if there is a major difference between the two when it comes to gas use when using for light travel and pulling purposes?

Thanks

PRNDL

3.73 all the way. regardless of anything. F150 + any engine + 3.73 = bad ***!

catlin987987

my 3.31 gears is just as fast as my buddys 4.10 gears, both 11 Eco's

SportTractoF150

He must be carrying a lot more weight then. Or doesn't know how to launch

EricTheOracle

EBs like to push against taller gears.

FoMoFun

Too bad you can't get the 3:55's. Nice compromise......

69428SCJ

The 3.31's will have no problem with that weight and net you about .5-.75 mpg better in non towing situations. 3.73's will offer a little better acceleration while towing or empty.

byoungblood

From experience, there won't be much difference in fuel economy unless you log a ton of highway miles. You may lose 1-1.5mpg highway with the shorter gears, but you have more mechanical advantage from a standstill, so you're usually in the throttle less. In the end, it usually ends up evening out for everyday driving.

EricTheOracle

My understanding from people who are into the sort of thing is that the 3.55 accelerates quicker than the 3.73.

69428SCJ

That would seem to go against common sense.